Dear gcc programers: what may cause compile error (on 4.5.2 or maybe not) ------ g++ pg49.cpp /tmp/ccUvNoPf.o: In function `main': pg49.cpp:(.text+0x42): undefined reference to `IntArray::IntArray(int*, int)' pg49.cpp:(.text+0x5e): undefined reference to `IntArrayRC::IntArrayRC(int*, int)' /tmp/ccUvNoPf.o: In function `IntArray::~IntArray()': pg49.cpp:(.text._ZN8IntArrayD2Ev[_ZN8IntArrayD5Ev]+0xb): undefined reference to `vtable for IntArray' /tmp/ccUvNoPf.o: In function `IntArrayRC::~IntArrayRC()': pg49.cpp:(.text._ZN10IntArrayRCD2Ev[_ZN10IntArrayRCD5Ev]+0xb): undefined reference to `vtable for IntArrayRC' collect2: ld returned 1 exit status -------- eric /* I am happy to supply code I compiled, plz show up your private email address or email me privately */
